Move three sodium ions out of a cell and two potassium ions into a cell while consuming an atp for each cycle
Explanation:
By pumping three (3) Na+ to the outside and two (2) K+ to the inside of the cell, there is a net positive charge on the outside leaving the inside of the cell electronegative. This process is achieved by the Na+/K+ pump and is a process that consumes ATP energy.
This is much more important in a neuron cell who ¾ of its energy is used to maintain a -70mV resting potential that is important for the nerve to pass impulse when depolarised.
In other cells, the gradient created in important in maintaining the homeostatic osmolarity inside the cell to avoid swelling and lysis of cells due to uptake of excess water by osmosis. The Na+ gradient is also used to import other molecules into the cell such as glucose and amino acids. These molecules are coupled with Na+ and then are absorbed efficiently as the Na+ flow back inside the cell down the Na+ concentration gradient.
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The first one is a atom
The second one is a compound
The third one is molecules that are not compounds
The last one is a atom
Answer:
Polysaccharides
Explanation:
Polysaccharides are sets of carbohydrates formed by the union of hundreds and miles of carbohydrate molecules, the set having the largest possible number of monomers
Answer:
negative, inhibition
Explanation:
The experiment in the illustration shows that early succession plants have a <u>negative </u>effect on the late succession plants, and the observation is most consistent with the <u>inhibition</u> model of succession.
<em>That the late succession plant thrives better in the absence of the early succession plants means that the early succession plant has been impacting the growth of the late succession plant negatively. This is consistent with the inhibition model of succession.</em>
There are 3 different models of succession. These include;
- Facilitation model in which colonists modify the environment to favor the growth of later successional species.
- Tolerance model in which early colonists' modification of the environment has no positive or negative impact on the growth of later successional species.
- Inhibition model in which early colonists modify the environment to inhibit the growth of later successional species.
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